chronic obstructive pulmonary disease
Conditions
Interventions
Healthy control group:NA
Sponsors
The Fourth Military Medical University, 986th Hospital of Air Force
Eligibility
Sex/Gender
All
Age
40 Years to 80 Years
Inclusion criteria
Inclusion criteria: All kinds of acute and chronic respiratory diseases were excluded in 500 healthy volunteers enrolled in this study. Participants were recruited from November 2024 through November 2029 at the 986 Hospital of the Air Force, and patients had to meet all the following eligibility criteria to be eligible for the study: 1. COPD was diagnosed by spirometry, the airflow is blocked after inhaling the branch expander (FEV 1/FVC is less than 0.7); 2. In a stable period; 3. Be between 40 and 80 years of age; 4. Normal understanding, clear consciousness, can cooperate with the research process.
Exclusion criteria
Exclusion criteria: Patients with any of the following were prohibited from inclusion in the study: 1.Patients with other respiratory conditions such as pulmonary embolism, congestive heart failure, interstitial lung disease exacerbation, pneumonia, or pneumothorax were included; 2.Malignant tumors, autoimmune diseases, systemic infectious diseases, important organ dysfunction; 3.Pleural disease or thoracic deformity; 4.Unable to cooperate with pulmonary function test; 5.Unable to wear the electrode band due to local skin damage.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| FEV1/FVC; | — |
Secondary
| Measure | Time frame |
|---|---|
| FEV1/FVC abnormal area;global inhomogeneity (GI);coefficients of variation (CV);regional ventilation delay (RVD); | — |
Countries
China
Contacts
Public ContactZhao Ke
The Fourth Military Medical University, 986th Hospital of Air Force
Outcome results
None listed